I would first buy extra batterys then a new charger . glue is a good idea but while you learn to fly cut the trottle when you get out of shape ,with a light plane like the champ most times you wont have any damage if you dont go in full throttle.

I just bought those bubro wheels today and ordered a 1/2 A steerable nose gear from them for a carnard i drew my own plans for and building now. I would get the wheels to and dont think about crashing just flying .